Bevel-sqttaue



M. E. SEAY.

BEVEL SQUARE.

APPLICATION FILED JUNE 13. m9.

Pdtented Dec. 9,1919.

lTNlTEP PAT NT OFFICE.

MATHEW E. SEAY, 0F WICHITA FALLS, TEXAS.

BEVEL-SQUARE.

Specification of Letters Patent.

Patented Dec. 9, 1919.

Application filed June 13, 1919. Serial No. 304,013.

-which the following is a specification.

The object of the invention is to provide a simple and comparatively inexpensive implement of the protractor type designed for the use of carpenters and other mechanics in the laying off of work, determining angles indicating bevels and chamfers of timbers for roofing, bracing and general construction and the like, and capable by the adjustment of its elements to represent at one time a plurality of bevels or directions disposed in different angular relations to the body of the instrument, so as to minimize and facilitate operations in fit ing the parts of an objective structure together, and to this end the invention consists in a construction, combination and relation of parts hereinafter described in detail, it being understood that changes in form proportion and details may be resorted to within the scope of the ap pended claims without departing from the principle involved.

In the drawing:

Figure 1 is a perspective view of the instrument with the pull blades thereof disposed at different angles to the stock or abutting portion of the same.

Fig. 2 is a sectional view taken in the plane of one of the bevel and clamping elements.

Fig. 3 is a detail longitudinal section of one end of the stock or abutting portion.

Fig. 4 is a plan view of the same.

Fig. 5 is a detailed view of one of the blades.

The implement comprises essentially a stock, handle or abutting portion 10 which is preferably rectangular in cross sectional construction and having rounded terminals, for convenience, and carrying at each end a plurality of relatively adjustable blades or elements 11, preferably arranged as shown in pairs and extended through slot like seats 12 formed by the slitting or bifurcation of the ends of the stock to provide relatively yieldable jaws 13 which may be drawn toward each other sufliciently to clamp said blades 'or elements in their adjusted positions. The blades or elements are pivotally mounted in these elongated seats 12 as by means of bolts 1% extending through the jaws 13 so as to intersect the seats and fitted with thumb nuts '15 by the adjustment of which said jaws may be caused to clamp and thus lock the blades or elements. Moreover, said bolts are fitted in slots 16 formed in registration in the related jaws ateach end of the stock, so that the bolts being adjustable relative to the length of the stock within the slots, the blades or elements 11 are correspondingly adjustable, or in other words, the pivotal points of connection of said blades or elements are adjustable longitudinally of the stock to'dispose said pivotal points at any desired distance apart within the length of the stock; which obviously may be modified, as may the blades or elements, to suit the purpose for which the implement is designed.

Thus as described, the blades or elements are capable as will be understood from the foregoing description of relative pivotal movement, and of corresponding movement relative to the stock, to dispose them in the desired relations for the purpose of taking and transferring a measurement or fitting, or a plurality of measurements or fittings, so that the angular relations between the parts of a structure may be reproduced or laid off as to any other object which the operator may desire to fit thereto, but in addition to these adjustments the said blades or elements are longitudinally slotted as shown at 17 for engagement with the pivot bolts, so that each blade is'capable ofa longitudinal adjustment with relation to its pivot and as well as with relation to the stock, in any angular position which it may occupy with relation to the stock, and hence may be disposed in alinement or substantial alinement with the stock to constitute an extension thereof, and in any of these adjustments the tightening of the means provided for that purpose and serving as clamps will lock the parts in said positions so asto preserve the measurement which hasbeen taken until such time as it may be used in connection with the work to be performed. It will be noted, moreover, that the longitudinal adjustment of the blades or elements may be utilized with reference to either of said elements independently of the others, to still further extend the utility of the implement one end of each blade as shown at 18 is preferably provided with an accurately transverse or right angular terminal face while the other end of the blade may be cut up on a diagonal line to form a face 19 at an angle other than a right angle to the length of the element and which, there fore, by reason of the angular adjustment of the blade may be disposed in any desired angular relation with the length of the stock.

T he invention having been described, what is claimed as new and useful is:

1. An implement having a stock provided at its extremities with yieldingly related jaws defining an intervening longitudinal seat, blades or elements extending through said seats, pivot bolts connecting the jaws and intersecting said seats to form pivotal mountings for the blades or elements therein, thumb nuts for engaging the bolts to clamp the jaws in engaging relation with the blades or elements, said jaws being provided with registering longitudinal slots within which said bolts are adjustable relative to the length of the stock.

2. An implement having a stock terminally provided with longitudinal seats and intersecting slots, pivot bolts engaging said slots in intersecting relation with the seats and provided with clamping nuts, and blades or elements arranged in intersecting relation in each of said seats and having longitudinal slots engaging the seat inte1= seoting bolts, said blades or elements being terminally provided with faces disposed in difierent angular relations to the length thereof.

In testimony whereof he affixes his signature. a

MATHEW n. SEAY. 

